Thams

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  • in reply to: Help with Beogram 59XX resistor replacement #39897
    Thams
    BRONZE Member

      Well I found out the problem, I simply forgot to adjust the unit scale on the multi-meter. I’m questioning my right to exist right now, but you live and learn I suppose.

      Only a handful of resistors were out of spec, but most likely fine, I’ll change the catalytic capacitor (C28), some diodes that are showing resistance both directions and test the system again.

      Thanks for your time and patience, I’ll get parts later this week so hopefully I can get it working soon.

      in reply to: Help with Beogram 59XX resistor replacement #39895
      Thams
      BRONZE Member

        If you are referring to the resisters in the lower right where the board is darkened, those are 1/4w resistors which are typically 6.5mm in length.

        Thanks, I need the Power Rating for all through-hole resistors, is it safe to assume that all 6.5mm resistors are 1/4W?

        I would check their values with a meter as even though the board is discolored most are probably fine when the resistor itself is not blackened in the middle.

        I have done some measurements and the resistors connected to C2 (the blown cap) are dead and a vast majority on the board are out of spec (or dead). Please note, on that picture I have already replaced C2 which made the record player work fine for about an hour before the controls really didn’t work and it got stuck in a shut-down loop.

        Also another question, should I replace 5% tolerance with 1% tolerance resistors? Any benefits or is it better to stay with the original spec?

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